added extraConfig to git settings

users/richie/home/cli/git.nix

@@ -3,5 +3,9 @@
     enable = true;
     userEmail = "Richie@tmmworkshop.com";
     userName = "Richie Cahill";
+    extraConfig = {
+      pull.rebase = true;
+      color.ui = true;
+    };
   };
 }